1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.tv.dvr.ui.list; 18 19 import android.os.Bundle; 20 import android.support.v17.leanback.app.DetailsFragment; 21 import android.support.v17.leanback.widget.ClassPresenterSelector; 22 import android.view.LayoutInflater; 23 import android.view.View; 24 import android.view.ViewGroup; 25 import android.widget.TextView; 26 27 import com.android.tv.ApplicationSingletons; 28 import com.android.tv.R; 29 import com.android.tv.TvApplication; 30 import com.android.tv.dvr.DvrDataManager; 31 import com.android.tv.dvr.DvrScheduleManager; 32 import com.android.tv.dvr.data.ScheduledRecording; 33 34 /** 35 * A base fragment to show the list of schedule recordings. 36 */ 37 public abstract class BaseDvrSchedulesFragment extends DetailsFragment 38 implements DvrDataManager.ScheduledRecordingListener, 39 DvrScheduleManager.OnConflictStateChangeListener { 40 /** 41 * The key for scheduled recording which has be selected in the list. 42 */ 43 public static final String SCHEDULES_KEY_SCHEDULED_RECORDING = 44 "schedules_key_scheduled_recording"; 45 46 private ScheduleRowAdapter mRowsAdapter; 47 private TextView mEmptyInfoScreenView; 48 49 @Override 50 public void onCreate(Bundle savedInstanceState) { 51 super.onCreate(savedInstanceState); 52 ClassPresenterSelector presenterSelector = new ClassPresenterSelector(); 53 presenterSelector.addClassPresenter(SchedulesHeaderRow.class, onCreateHeaderRowPresenter()); 54 presenterSelector.addClassPresenter(ScheduleRow.class, onCreateRowPresenter()); 55 mRowsAdapter = onCreateRowsAdapter(presenterSelector); 56 setAdapter(mRowsAdapter); 57 mRowsAdapter.start(); 58 ApplicationSingletons singletons = TvApplication.getSingletons(getContext()); 59 singletons.getDvrDataManager().addScheduledRecordingListener(this); 60 singletons.getDvrScheduleManager().addOnConflictStateChangeListener(this); 61 mEmptyInfoScreenView = (TextView) getActivity().findViewById(R.id.empty_info_screen); 62 } 63 64 @Override 65 public View onCreateView(LayoutInflater inflater, ViewGroup container, 66 Bundle savedInstanceState) { 67 View view = super.onCreateView(inflater, container, savedInstanceState); 68 int firstItemPosition = getFirstItemPosition(); 69 if (firstItemPosition != -1) { 70 getRowsFragment().setSelectedPosition(firstItemPosition, false); 71 } 72 return view; 73 } 74 75 /** 76 * Returns rows adapter. 77 */ 78 protected ScheduleRowAdapter getRowsAdapter() { 79 return mRowsAdapter; 80 } 81 82 /** 83 * Shows the empty message. 84 */ 85 void showEmptyMessage(int messageId) { 86 mEmptyInfoScreenView.setText(messageId); 87 if (mEmptyInfoScreenView.getVisibility() != View.VISIBLE) { 88 mEmptyInfoScreenView.setVisibility(View.VISIBLE); 89 } 90 } 91 92 /** 93 * Hides the empty message. 94 */ 95 void hideEmptyMessage() { 96 if (mEmptyInfoScreenView.getVisibility() == View.VISIBLE) { 97 mEmptyInfoScreenView.setVisibility(View.GONE); 98 } 99 } 100 101 @Override 102 public View onInflateTitleView(LayoutInflater inflater, ViewGroup parent, 103 Bundle savedInstanceState) { 104 // Workaround of b/31046014 105 return null; 106 } 107 108 @Override 109 public void onDestroy() { 110 ApplicationSingletons singletons = TvApplication.getSingletons(getContext()); 111 singletons.getDvrScheduleManager().removeOnConflictStateChangeListener(this); 112 singletons.getDvrDataManager().removeScheduledRecordingListener(this); 113 mRowsAdapter.stop(); 114 super.onDestroy(); 115 } 116 117 /** 118 * Creates header row presenter. 119 */ 120 public abstract SchedulesHeaderRowPresenter onCreateHeaderRowPresenter(); 121 122 /** 123 * Creates rows presenter. 124 */ 125 public abstract ScheduleRowPresenter onCreateRowPresenter(); 126 127 /** 128 * Creates rows adapter. 129 */ 130 public abstract ScheduleRowAdapter onCreateRowsAdapter(ClassPresenterSelector presenterSelecor); 131 132 /** 133 * Gets the first focus position in schedules list. 134 */ 135 protected int getFirstItemPosition() { 136 for (int i = 0; i < mRowsAdapter.size(); i++) { 137 if (mRowsAdapter.get(i) instanceof ScheduleRow) { 138 return i; 139 } 140 } 141 return -1; 142 } 143 144 @Override 145 public void onScheduledRecordingAdded(ScheduledRecording... scheduledRecordings) { 146 if (mRowsAdapter != null) { 147 for (ScheduledRecording recording : scheduledRecordings) { 148 mRowsAdapter.onScheduledRecordingAdded(recording); 149 } 150 } 151 } 152 153 @Override 154 public void onScheduledRecordingRemoved(ScheduledRecording... scheduledRecordings) { 155 if (mRowsAdapter != null) { 156 for (ScheduledRecording recording : scheduledRecordings) { 157 mRowsAdapter.onScheduledRecordingRemoved(recording); 158 } 159 } 160 } 161 162 @Override 163 public void onScheduledRecordingStatusChanged(ScheduledRecording... scheduledRecordings) { 164 if (mRowsAdapter != null) { 165 for (ScheduledRecording recording : scheduledRecordings) { 166 mRowsAdapter.onScheduledRecordingUpdated(recording, false); 167 } 168 } 169 } 170 171 @Override 172 public void onConflictStateChange(boolean conflict, ScheduledRecording... schedules) { 173 if (mRowsAdapter != null) { 174 for (ScheduledRecording recording : schedules) { 175 mRowsAdapter.onScheduledRecordingUpdated(recording, true); 176 } 177 } 178 } 179 }